... -rolled strip steel Made 2.Nickel Plated 3.Office, School, Project,etc use 280mm 3 Ring Designer Binder Clips :Features:1. Easily ... detached, harm-free from paper files2. Simple design, elegant looking.3. Stable structure. Not easy to scratch or dent.4. Durable ... . equipped with completed facilities and more than 1000 skilled employees.3. all the materials are eco-friendly.4. SGS test reports ...